Experimental demonstration of spinor slow light

Abstract

Slow light based on the effect of electromagnetically induced transparency is of great interest due to its applications in low-light-level nonlinear optics and quantum information manipulation. The previous experiments all dealt with the single-component slow light. Here we report the experimental demonstration of two-component or spinor slow light using a double tripod atom-light coupling scheme. The scheme involves three atomic ground states coupled to two excited states by six light fields. The oscillation due to the interaction between the two components was observed. Based on the stored light, our data showed that the double tripod scheme behaves like the two outcomes of an interferometer enabling precision measurements of frequency detuning. We experimentally demonstrated a possible application of the double tripod scheme as quantum memory/rotator for the two-color qubit. Our study also suggests that the spinor slow light is a better method than a widely-used scheme in the nonlinear frequency conversion.

12 pages and 9 figures

References in corpus (16)

• Stationary pulses of light in an atomic medium
• Mapping photonic entanglement into and out of a quantum memory
• Storage and control of optical photons using Rydberg polaritons
• A millisecond quantum memory for scalable quantum networks
• Coherent Optical Memory with High Storage Efficiency and Large Fractional Delay
• Magneto-optical rotation and cross-phase modulation via coherently driven tripod atoms
• Large Cross-Phase Modulation between Slow Co-propagating Weak Pulses in Rb
• Stationary Light Pulses in Cold Atomic Media
• Stationary Light Pulses without Bragg Gratings
• Slow-light Faraday effect: an atomic probe with gigahertz bandwidth
• Optimal Storage and Retrieval of Single-Photon Waveforms
• Resonance beating of light stored using atomic spinor polaritons
• Slow polaritons with orbital angular momentum in atomic gases
• Slow light with integrated gain and large pulse delay
• Bose-Einstein condensation of stationary-light polaritons
• Beam splitting and Hong-Ou-Mandel interference for stored light

Cited by in corpus (7)

• Quantum processing with ensembles of rare earth ions in a stoichiometric crystal
• Electromagnetically induced transparency and nonlinear pulse propagation in a combined tripod and $\Lambda$ atom-light coupling scheme
• Coherent and Dynamic Beam Splitting based on Light Storage in Cold Atoms
• Modulation of single-photon-level wave packets with two-component electromagnetically induced transparency
• Effect of laser frequency fluctuation on the decay rate of Rydberg coherence
• Propagation of coupled dark-state polaritons and storage of light in a tripod medium
• Realizing topological relativistic dynamics with slow light polaritons at room temperature